I'm seeking computer hardware older than 1990. Some particular items of interest: CGA monitor MDA monitor EGA monitor XT keyboard ST-412/506 interface hard drives 8086/8088 based boards 8080/8085 based boards S100 items SMD hard drives Anything to do with mainframes. Especially interested in even older and more unusual stuff like Sun SPARC, DEC PDP, Northstar, MIPS, etc. Also looking for an IBM DisplayWriter.